Garden State, Ravenous, Empire Strikes Back, Kill Bill 2, The Royal Tenanbaums, and of course anything by Danny Elfman, because he's a fucking badass.
Have to post a second vote for Easy Rider, The Rocky Horror Picture Show, Kill Bill II and add Exodus
Eternal Sunshine of the Spotless Mind is wicked. Donnie Darko is great too, and yep, Garden State, Rushmore and Requiem for a Dream rock as well (though they suit very different moods). and i also have to mention the Dirty Dancing soundtrack, just for its sheer 80s tackiness - Patrick Swazye singing a tender love ballard, while the music vid showcases all his mullety glory? Gold.